[SciPy-dev] Why does orth use svd instead of QR ?

Gael Varoquaux gael.varoquaux@normalesup....
Fri Feb 5 02:10:12 CST 2010


On Fri, Feb 05, 2010 at 04:18:02PM +0900, David Cournapeau wrote:
> So would be it ok to use this column-rotated QR in place of svd for 
> every case in orth ? I would have to check that QR with column rotation 
> is still significantly faster than svd, but I would surprised if if were 
> not the case. QR has also the advantage of being implemented in PLASMA 
> already contrary to eigen/svd solvers,

Out of curiosity, what's PLASMA, in this context?

Gaël


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